D155AX-7 WH

The D155AX-7WH is a dozer that bridges the gap between contractor site prep dozers and large contractor production/mining dozers. The Tier 4 interim D155AX-7WH has the precise and responsive hydraulic control and smooth turning of hydrostatic steering of smaller dozers for grading and big dozer features like a lock-up torque converter, Unique, high production Sigma dozer blade and K-bogie oscillating undercarriage.

Additional Work Lights

The 2 hood mounted lights are relocated to the top of the cylinders along with 2additional lights to improve visibility over the trash rack.The cab is prewired for installation of a beacon light.

Cab Air Pre-cleaner

The optional cab air filtration system provides pre-cleaned, filtered air to the HVAC system.The cab is pressurized to minimize odors and dust.

Chassis Seal Package

Additional sealing is added to the engine doors and chassis components to reduce the amount of debris entering the engine compartment.

Deflector Bars and Bolt Guards

Strategically placed on the side, bottom and front of the main frame, deflector bars and bolt guards help redirect debris away from components.

Engine Pre-cleaner with Screen

A protective screen is added to the standard centrifugal engine air precleaner to remove
large particles from the engine air before they reach the filter elements.

Engine Thermal Guard

The thermal guard covers the exhaust manifold, KDPF, and hot side of the turbocharger, reducing the potential for combustible debris to come in contact with hot surfaces.

Final Drive and Idler Seals

Seal guards around the final drive form a stepped labyrinth to provide 360° of protection to help prevent debris from entering oil seal areas and extend component life. The front idler seals are also protected by additional guarding.

Front Striker Bars

Angled front striker bars are designed to prevent debris from riding up on the track sand damaging the chassis. The bolt-on design allows for easy servicing.

Steering System

Palm Command Control System (PCCS) lever controls for all
directional movements. Pushing the PCCS lever forward results
in forward machine travel, while pulling it rearward reverses the
machine. Simply tilt the PCCS lever to the left to make a left
turn. Tilt it to the right for a right turn.

Hydrostatic Steering System (HSS) is powered by steering
planetary units and an independent hydraulic pump and motor.
Counter-rotation turns are also available. Wet, multiple-disc,
pedal-controlled service brakes are spring-actuated and
hydraulically released. Gearshift lock lever also applies parking
brakes.